95% of the students will score between 400 and 600, because you use a bell shaped graph and normal distribution to put the variables in the bottom. The graph i attached should help. So the answer is 95% of the students will score between 400 and 600. Hope this helped, and by the way I am a girl, not a poly whatever guy like that person said lol.
Answer:

Step-by-step explanation:
I hope this helps you out with your question. (:
Just click on the photo and it'll show you.
The area is 128 inches squared.
Step-by-step explanation:
12 times 8 is 96, plus the two side triangles (32 when combined) is 128.